Flight OddsUA733 BOS → SFO
United Airlines · Boston, MA to San Francisco, CA · 26 flights observed, 2025-09-25 to 2025-10-24 · 2,704 mi
UA733 covers more than one route in the data window — the stats below are for BOS → SFO, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
54%
Median delay
+3 min
90th percentile
+86 min
Cancellation rate
0%
How often is UA733 on time?
Across 26 flights on BOS → SFO from 2025-09-25 to 2025-10-24, UA733 arrived within 15 minutes of schedule 54% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +86 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 14 | 54% |
| 16-30 min | 2 | 8% |
| 31-60 min | 5 | 19% |
| 61-120 min | 4 | 15% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-09 | 5 | 80% | +19 min |
| 2025-10 | 21 | 48% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | 4 | 75% |
| Wed | 4 | 50% |
| Thu | 5 | 60% |
| Fri | 5 | 60% |
| Sat | No data | — |
| Sun | 4 | 50% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…